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一、前言最近几年,在铸锭生产上采用了挂绝热板的上小下大钢锭模新工艺,这对提高钢锭收得率是一项有效的措施,在国内外己广泛采用。为了提高钢锭收得率和质量,消除二次缩孔,国内外在采用保护渣浇注方面做了大量的研究工作,为了提高钢锭的质量和收得率,国内外均在自己资源的基础上寻找良好的保护渣。近年来已将固体保护渣分别加工成粉状、粒状、块状、板状等品种。国内各钢厂已广泛采用固体保护渣浇注。大部分保护渣都以石墨质为主,不仅可提高钢锭
I. Introduction In recent years, the production of ingots has been used to hang the hot plate on the small ingot mold process, which is to improve the ingot yield is an effective measure has been widely used at home and abroad. In order to improve the yield and quality of steel ingot and eliminate secondary shrinkage cavity, a great deal of research work has been done at home and abroad on the use of mold powder casting. In order to improve the quality and yield of steel ingot, both domestic and foreign resources are searched on the basis of their own resources Good mold powder. In recent years, solid powder have been processed into powder, granular, block, plate and other varieties. Domestic steel mills have been widely used solid mold casting. Most of the protective slag are mainly graphite, not only can improve the ingot